Submission #1249062

#	Time	Username	Problem	Language	Result	Execution time	Memory
1249062		bethance	Star triangles (IZhO11_triangle)	C++20	Compilation error	0 ms	0 KiB

triangle

#include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	cin>>n;int ans=0;r=0,l=0;
	while(n--){
		int a,b;
		cin>>a>>b;
		if(a==1){
			r++;
		}
		if(b==1){
			l++;
		}if(a==b){
			r--;
		}
	}
	cout<<r*l;
}

Compilation message (stderr)

triangle.cpp: In function 'int main()':
triangle.cpp:5:26: error: 'r' was not declared in this scope
    5 |         cin>>n;int ans=0;r=0,l=0;
      |                          ^
triangle.cpp:5:30: error: 'l' was not declared in this scope
    5 |         cin>>n;int ans=0;r=0,l=0;
      |                              ^